An Efficient Dynamic Modeling Technique for a Central Tie Rod Rotor
Compared with the three-dimensional rotor model for a central tie rod rotor, an equivalent one-dimensional model can greatly improve the computational efficiency in rotor dynamics analysis with a certain accuracy. However, little research work can be found on improving the modeling accuracy of one-d...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/6618828 |
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| _version_ | 1850157670719291392 |
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| author | Jingze Liu Qingguo Fei Shaoqing Wu Zhenhuan Tang Sanfeng Liao Dahai Zhang |
| author_facet | Jingze Liu Qingguo Fei Shaoqing Wu Zhenhuan Tang Sanfeng Liao Dahai Zhang |
| author_sort | Jingze Liu |
| collection | DOAJ |
| description | Compared with the three-dimensional rotor model for a central tie rod rotor, an equivalent one-dimensional model can greatly improve the computational efficiency in rotor dynamics analysis with a certain accuracy. However, little research work can be found on improving the modeling accuracy of one-dimensional models using experimental data. In this paper, a one-dimensional discrete mass model considering pretightening force is proposed for central tie rod rotors to achieve the purpose of both efficient and accurate modeling. Experimental testing and three-dimensional model analysis are used as reference and verification approaches. A sensitivity-based method is adopted to update the proposed one-dimensional model via minimizing the error in the critical speed comparing with the corresponding three-dimensional finite element model which has been verified by a modal test. Prediction of damped unbalanced response is conducted to show the practicality of the updated one-dimensional model. Results show that the method presented in this research work can be used to simulate a complex preloaded rotor system with high efficiency and accuracy. |
| format | Article |
| id | doaj-art-34fee8fb13bb40bcbfe73f6f9a95ec75 |
| institution | OA Journals |
| issn | 1687-5966 1687-5974 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-34fee8fb13bb40bcbfe73f6f9a95ec752025-08-20T02:24:05ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742021-01-01202110.1155/2021/66188286618828An Efficient Dynamic Modeling Technique for a Central Tie Rod RotorJingze Liu0Qingguo Fei1Shaoqing Wu2Zhenhuan Tang3Sanfeng Liao4Dahai Zhang5Jiangsu Engineering Research Center of Aerospace Machinery, Nanjing 211189, ChinaJiangsu Engineering Research Center of Aerospace Machinery, Nanjing 211189, ChinaJiangsu Engineering Research Center of Aerospace Machinery, Nanjing 211189, ChinaChina Aviation Power Plant Research Institute, Zhuzhou 412002, ChinaChina Aviation Power Plant Research Institute, Zhuzhou 412002, ChinaJiangsu Engineering Research Center of Aerospace Machinery, Nanjing 211189, ChinaCompared with the three-dimensional rotor model for a central tie rod rotor, an equivalent one-dimensional model can greatly improve the computational efficiency in rotor dynamics analysis with a certain accuracy. However, little research work can be found on improving the modeling accuracy of one-dimensional models using experimental data. In this paper, a one-dimensional discrete mass model considering pretightening force is proposed for central tie rod rotors to achieve the purpose of both efficient and accurate modeling. Experimental testing and three-dimensional model analysis are used as reference and verification approaches. A sensitivity-based method is adopted to update the proposed one-dimensional model via minimizing the error in the critical speed comparing with the corresponding three-dimensional finite element model which has been verified by a modal test. Prediction of damped unbalanced response is conducted to show the practicality of the updated one-dimensional model. Results show that the method presented in this research work can be used to simulate a complex preloaded rotor system with high efficiency and accuracy.http://dx.doi.org/10.1155/2021/6618828 |
| spellingShingle | Jingze Liu Qingguo Fei Shaoqing Wu Zhenhuan Tang Sanfeng Liao Dahai Zhang An Efficient Dynamic Modeling Technique for a Central Tie Rod Rotor International Journal of Aerospace Engineering |
| title | An Efficient Dynamic Modeling Technique for a Central Tie Rod Rotor |
| title_full | An Efficient Dynamic Modeling Technique for a Central Tie Rod Rotor |
| title_fullStr | An Efficient Dynamic Modeling Technique for a Central Tie Rod Rotor |
| title_full_unstemmed | An Efficient Dynamic Modeling Technique for a Central Tie Rod Rotor |
| title_short | An Efficient Dynamic Modeling Technique for a Central Tie Rod Rotor |
| title_sort | efficient dynamic modeling technique for a central tie rod rotor |
| url | http://dx.doi.org/10.1155/2021/6618828 |
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